I would guess that it is something someone modified in their garage years ago. Doesn't look bad at all to me. If you like it, that's all that matters.
Jeff
Some sound advice should you find yourself at the controls of an aircraft...
"Try to stay in the middle of the air. Do not go near the edges of it. The edges of the air can be recognized by the appearance of ground, buildings, sea, trees and interstellar space. It is much more difficult to fly there."
| 
